Vent cap for heaters and the like



March 23 1926. 1,578,030

P. w. HIRSCHBERG vsu'n CAP FOR HEATERS AND THE LIKE Filed Nov. 6, 1924 Patented Mar. 23, 1926.

UNITED STATES PAUL WILLIAM HIRSCI-IIBERG, OF LOS ANGELES, CALIFORNIA.

VENT car non HEATERS AND THE LIKE.

Application filed Hoveniber c, 1924. Serial No. 748,181.

To aZZ whom it may concern:

Be it known that 1, PAUL WILLIAM Hrnsonsnne, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Vent- Caps for Heaters and the like, of which the following is a specification.

This invention relates to improvements in vent caps for heaters and the like.

It is an object of this invention to provide a vent cap or chimney which is adapted to be mounted upon the roof and to convey hot gases or smoke from a heating element through the roof, which vent cap is provided with an improved means for insulating the smoke or gas carrying pipe from the roof, so that danger of the roof being set on fire is eliminated.

It is a further object of this invention to provide a vent cap consisting of a pipe, upon the upper edges of which there are mounted one or more brackets, upon the top of which brackets a cap is mounted and about which brackets there is mounted a plate disposed beneath the cap, which plate will be provided with a corrugation or rim adapted to prevent sparks from rolling off of the plate and falling on to the roof.

lVith the foregoing and other objects in view which will be made manifest in the following detailed description and pointed out in the appended claim, reference is had to the accompanying drawings for an illustrative embodiment of the invention, where- Figure 1 is a vertical section through the improved vent cap; and

Fig. 2 is a perspective View of the improved vent cap.

Referring to the accompanying drawings wherein similar reference characters designate similar parts throughout, the improved vent cap consists of a section of pipe 10 which may be formed of sheet metal, or the like, and a small section 11 is disposed therewithin adjacent the lower end of the pipe 10, and is secured therein by means of rivets 12. The lower edges of the pipe 10 are outwardly flared, as at 13, and a suitable flange 14 is disposed beneath the flared portion 13 and secured thereto as by solder, welding or the like. tion of pipe 11 there is disposed a sleeve or skirt 15 having its upper edges secured to the edges of the flange 14 as by a lock seam About the lower sec-v the roof R and support the vent cap in vertical position. Apertures 19 are formed in glee pipe section 11 by stamping out portions neath the flange 14 and serve to additionally secure the flange 1 1 to the lower end of the pipe 10.

Upon the upper end of the pipe 10 there is mounted a plurality of brackets 21 and a suitable collar 22 is disposed about the upper end of the pipe 10. Rivets 23 pass through the brackets, the pipe 10 and the collar 22 and rigidly secure the brackets to the pipe 10. Upon the upper ends of the brackets 21, there is mounted a conical shaped cap 2 1 which has a corrugation 25 formed adjacent its edges. Beneath the cap 2 1 and secured about the brackets 21 there is mounted a plate 26 having an aperture formed therein of approximately the same diameter as the internal diameter of the pipe 10. The plate 26 is secured as by angles 27 and is also provided with a corrugation or rib 28 formed adjacent its edges. 1V hen the vent cap is mounted upon a roof, it is positioned above the vent pipe V lead ing from a suitable heating element within the dwelling. A section of terra cotta T serves to connect the upper end of the vent pipe V to the pipe section 11.

The advantages of the improved vent pipe are as follows: If for any reason the vent pipe V, terra cotta T and the pipe section 11 should become very hot, it willbe noted that the sleeve 15 is held in spaced relation to the pipe section 11 and the terra cotta T so as to provide an air space. This air space prevents the sleeve 15 from becoming heated sufficiently to cause the roof R to be set on fire. The apertures 19 permit the air between the pipe section 11 and the sleeve 15 to pass upwardly therethrough and into the pipe 10, so that cool air is drawn into the space between the pipe section 11 and the sleeve 15 and additionally keeps the sleeve 15 quite cool. Sparks which may rise within the pipe 10 strike the cap 24: and instead of being deflected downwardly upon the roof R tend to strike the plate 26. The corrugation 28 upon the plate 26 prevents the sparks from dropping from the The portions 20 are bent upwardly be plate 26 and also serves to strengthen the plate. 33y preventing the sparks :it'rom being deflected directly down upon the rooi R by the cap 2 Wind or air currents will tend to carry the sparks from the plate 26 ina more or less horizontal direction so as to carry them off of the roof R.

It is seen that an improved vent cap for heaters and the like is provided which com plies with the cit-y ordinances, which ordinances are usually very strict concerning the insulation between the vent pipe and the roof or Wall of the dwelling.

It will be understood that various changes in the details of construction may be prising a pipe adapted to project through a roof and adapted to be connected to a vent pipe from a heater a cylindrical sleeve disposed about the pipe at the location of the roof defining an annular chamber thereabout having an open bottom disposed below the roof, a plate secured to said pipe to which the upper end of the sleeve is secured, thus forming a closure for the upper end of said chamber, there being apertures formed in said pipe immediately below said plate by striking out portions of the pipe and bending them upwardly against the under side of said plate so as to additionally support it, said apertures permitting air from below the roof to pass upwardly through said chamber and into the pipe.

In testimony whereof I have signed my name to this specification.

PAUL u at. mason-Brine. 

